

public class Student {
    public static void main(String[] args) {
        StudentTest stu = new StudentTest();
        stu.setName("xxx");
        stu.sex='女';
        stu.show();
        StudentTest stu2 = new StudentTest();
        stu2.setName("zzz");
        stu2.show();
        stu.show();
    }

}
